Machine for inserting fastenings.



G. GUDDU. MAGHNE EUR XNSBRTlNG PASTBNINGS.

APPLIGATION FILED JUNE15,1912.

4 SHEETS-SHBBT 2.

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[Nl/ENTOR WHA/55555 G. GODDU.' MAGHINE PSR lNSBRTlNG FAsTBNmGsAPPLICATION .FILED JUNE 16. 1912.

INVENIOR l SHEETS-SHBET Patented Nov. 26, 1912.

WIM/55555:

. 6M @7M/M G. GODDU. MACHINE FOR INSBRTING FASTENINGS.

APPLICATION FILED JUNE 15,1912.

` Patented Nov"l 26, 1912.

4 SHEETS-SHBET 4.

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35 y speed capacity ofthe machine in which it is 'MACHINERY CGMPANL', 0FPATERSON. NEEV JERSEY, A. CGW@ JERSEY.

e TION @E 'il/TEW MACHINE FR NSEETNG FSEME.

inenten.

Patent item2@ ili.

. 'Gontimiationpf application Serial No. Maen, lsled 1 "c`or iiar5fy e,wett@ 'mais application flied Jane i5; mijn.

Serial No To all whom 'it may concern:

Berit known that L GEORGE Gonno, a

"citizen-ofthe United States,V residing at Winchester, in the county otMiddlesex and tening inserting machines of lthe type in which means isprovided for forming a tas.-

tening receiving opening in thework, a preferred Lt'orin'of theinvention being shown as embodied in the machine for insertingpreviously formed fastenings which is illustrated and-described indetail in United States Letters-Patent to George Goddu, No.l

1,030,775e Granted June 25,1912, for iin-- proveniente in machines forinserting .tas-

' tenings. The present application is a con tinu'ation of .theco-pending application.

which matured into lsaid Letters Patent in so feras the two applicationsdisclose coinmon subject-matter.

A general object of the invention is to provide in a fastening insertingmachine improved means for forming the fastening receiving openings inthe work which will be especially useful in a fastening insertingmachine that is to be runat l high speed and which will itselfcontribute to an increased embodied. ln the illustrated machine themeans for forming the fastening `receiving openings in the workcomprises an awl, and

-an important object of the invention is to provide improved mechanismfor controlling automatically the'depth to which the l ointfof the awlis forced int-o the work in its work penetratimg` movement.

ltis important in a machine which is to, 4be operated at high speed thatthe movements oi the awlor other means for torm- 'ing af fasteningreceiving opening in the work be substantially positively controlled.,especially` those movements which are intended to bring the awl intodenite .coperative relation to other parts of theniachine at deinitetimes. lt is iniportant,lthere`fore, that mechanism tor controllingthedepth of to machines for inpenetration 4oifj the avvl into theaiworltbe so constructed andarranged that it Will'not interfere with thesubstantially pitive con- '.trol of the awl by'its operatinginecha- Aparticular object of the invention;therefore, is to provide', incombination with awl' actuating mechanism arranged to. actuate themechanism and yet lwhich Will have nodirect eect upon the 'awl itself,nor'any eect upon t-he awl through its actuating mechanism `except atthe desired times.

ln its illustrated preferred' embodiment the awl depth 'controllingmechanism is as sociated with the mechanism Which-controls the releaseof the work supportor the worlr feeding operation, and an importantfeature of the invention is the connection ofthe awl of the work supportcontrolling .mechanism which .is held against movement during the workreleasing opeiat1on, Wlierebyfsaid re- 0 475l depth controllingmechanism with a member lease, `itollowing as it doesv the worlrpene e@elect upon the position of the awl.

ln'the accompanying drawings,l*`igure l isa side elevation cfamachine'embodjving vferred form of the mechanism for controlling thedepth of penetration ofthe awl into the work; Figo shows afmodiiicationol the aivl depth controlling mechanism;A Fig. 6 is a perspective detailot the locking mechatrating movement of the aWl,`Will have .no

nism, constituting a part oit the lhorn oper- Y ating mechanism; andv 7'is a detail sectionthrough the yielding connection loe- 'tween the awldepth controlling mer-,lianisirn and the horn release mechanism.

The illustrated machine vhas a. supporting frame comprising a base 2, astandard or column 4l and a head 6.' the base are mounted a coi/intershatt'to which is attached a pulley 10 connected to any suitable sourceof power', and .tlie horn depressing and clutch operating treadles l2and lll respectively. The counter shaft 8 also carries a second pulleyrigidly attached to it and connected by a belt 16 to a loose pulley 18upon the main driving shaft 20 inthe head of the machine as awhole.

.6. In the upright portion of the frame or.

standard 4 are'mounted the work support or horn 22 and the horn releasecontrolling vmechanism. 1n the head 6 are mounted the various parts ofthe fastening inserting mechanism and the cams which control the timingof the operations of the various parts The tastening insertingor naildriving mechanismv comprisesa driver bar 24 mounted to reciprocatevertically in a 4guideway 'in an upright part 26 of the machine-head .land having clamped lto its lower end a mounted upon the'driving shaft20.

The nails to'be driven are contained in a hopper 56 from which they areconducted by'a raceWay 58 to a point adjacent to the driver passage inthe'driver guide 60, said guide being broken away at the side adjacentto. the vracevvay whereby the nails may be introduced one at a time fromsaid raceway into said driver passage. Below the driver guide 60 is anail receiving throat 62 mounted upon a slide 64 and'inovable y withsaid slide transversely to the path of feed of the Work `and'transversely to the raceway 58.

Transverse movement of the throat 62 and slide 64 is provided toWithdraw the throatfrom the pathv of feed movement of the aWl 66,hereinafter to be described, in

order-to permit the'avvlA to bring the nailv receiving opening which ithas formed in the Work beneath the driver passage. The slide 64 isguided in an opening in the machine frame. and is provided at fits rearend with rack teeth 68 with which engage the teeth upon a segment rack70 upon the lower end of a slide actuating lever 72 pivoted at 74 on themachine head and carrying at its upper end a cam roll which enters a camgroove 78 in the cam Wheel 48, said cam groeve 78 being so shaped as toetlect -the movement of the throat 62 into operative' vposition and toWithdraw it out of the path of ,the aWl at the proper times in the cycleof operations of the machine. The nail separator 80 is also mounted uponthe slide 64'to move therewith and is yieldingly connected with saidslide so that onthe return movement of the slide 64 the separator maymore relatively tosaid slide in the event that it an ohsn'netion in theraeetray.; The

Loeagee awl 66 is clamped in anv aWl bar 96 which has a straightvertical portion mounted to slide in a vertical guideway in an awlcarrying trameS, said frame .98 being provided u'ith a horizontaldove-tailed portion 100 arranged to slide in a similarly shaped slideway.formed in 'a' bracket 102 bolted to the machine head. Theawl bar96 isarranged to reciprocate vertically-in its carrying iframe 98 and to bemoved horizontally with said frame.

The mechanism for effecting the horizontal movement of the frame 98comprises a floating lever 104 pro-vided With'a guide- Way 106 in whichis slidably mounted a fulcrum block 108 pivoted upon a stationarytulcrum pi-n 110 carried by a block 111 ad justably mounted in anupstanding portion 112 of the machine head. Vertical adjust- -v -ment ofthe fulcrum pin 110 varies the relative length of the two arms of thefloating lever 104 and therefore varies the amount of horizontalmovement of the frame 98 and the amount of'feed movement of the aWl. Forconvenience in adju-sting the fulcrum pin 110, the upstanding portion ofthe frame 112 is provided with a nail -spacing scale 114 With whichcoperatesan indica- -tor on the fulcrum pin carrying block 111.

At its upper end the floating lever 104 is pro-vided with a cam roll 116Which travels in a cam groove 118 formed in the rear face of the camdisk 120 mounted upon the forward end of the main driving shaft 20.

Upon the rear face of its vertical portion the awl bar 96 isprovided'with rack teeth with which engage the teeth upon a segment4rack carried upon one arm 122 of an awl operating lever. The awloperating lever is fulcnnmed upon arock-sha-'t 124, being provided ujitha Ysleeve 125 which surrounds said rock-shaft. The arm 122 ofthea-Wloperatingv lever is attached tothe inner en d of the sleeve 125andthe otherarm 126 is attached to the other end of said sleeve.

The arm 126 of the awl operating lever comprises a .casing in vWhich ismounted a slide bar 128 broken at 130 into two separaL ble sections.'the lower section 1280 being provided with rack teeth which mesh. withthe teeth of a pinion 132 carried at the outer end of the rock-shaft 124and the upper section 1281vreceiving through an opening in the back ofthe casing whichy ormsthearm 126 a pivot pin 134 upon a block 136.arranged to be moved 'vertically in a lever l138 pivoted at one endzit-140 to the machine head and atits other end carrying a cam roll 142which enters a cam groove 144 in a cam Wheel 146 on the main shaft 20.

Thelever 138 is provided `with a spring socket 148 in which is containeda spring 150 which holds the block '136 yieldinglynm its lowermostposition. The power which operates the te cause it to penetrate the 31?work being transmitted to the arm 126 of the awl operating lever throughthe lever 188, the` eliective length ot' the arm 126 is therefore variedb v varying the vertical position of the tulcrmn pin 134.

In order that the Work penet-rating movement of the awl may beproportioned to the thickness of the Work, mechanism is provided forautomatically varying the vertical position of the tulcrum pin 134 inaccordance Wit-h the thickness of the work. This mechanism comprises alever 152 attachedto a rockshaft 154 having bearings in the machinehead, said lever carrying at its tor- Ward end a segment rack 156 whichengages a pinion 158, see Fig. 3, upon the inner end of the rock-shaft124. The rear 'end of the lever 152 is connected by a rod 160 to asclide 162 constit-uting a part of the Work thickness compensa-tingmechanism through which the releasing movement of the horn is controlledfor the Work feeding operation. Since the position of the slide 162 isdetermined by the thickness of the Work in a manner hereinafter to bedescribed, the vertical posit-ion of the fulcrum pin 134 will becontrolledl through4 the rod 160, lever 152, segment 156, pinion 158,rock-shaft 124,

pinion 132 and slide 128.

The horn release mechanism herein shown is `substantially t-he'same inits construction and principle ot operation as that shown in mylcopending application, Serial No. 409,352. iiled Jan. 4, 1908, exceptthat the mechanism herein shown 'is mounted in` thecolumn 4 to operatein the reverse direction from that in which the mechanism in theco-pending application operates. In the illustrated construction theslide 162 is nor`- mally depressed into its lowermost posit-ion by ahorn raising and Work clamping spring 16.4 hearing at its upper endagainst a crosspiece in the column 4 and at its lower end at its forwardend connected by a block and5 ,ot still vgreater thickness. Thisyielding :connection `comprises a socket 198 located the horn supportingrod 174 is thread The lever 172v is forked at its forward ndr. Thestraightening ot' the tcggle is effected. through a link 176 connectedat one end to being received in an annular socket 166 surrounding andclamped upon a threaded rod 10T connected to the -slide 162.

The pressure of the spring 164 initted to the horn 22 throughconnections comprising toggle links 168. 170 and a lever 172 fulcru'medin the column 4 and connect.-V ed at its rear end to the toggle link 170and slot. connection to a member 17 5 into which the knee joint of thetoggle and at its other end to one arm of a bell-c ank lever 178` theother arm oi which is connected by a rod 180 to an arm -ot' a secondhell-crank lever. t82. The other arm oi" the lever 182 carries acanti-ell entering a cam slot '184 in the cam ivhcei 48. ll'hen' thetoggle is broken` the spring 164 is preferably locked against istransspringl ratchet when t-he toggle is broken, said pa'vvls being heldout'ot' engagement with said ratchet when the toggle is straightened thepressure of a nger 199, attached to the toggle link 168.v upon the tails194 o said pawls.

The horn may be depressed. when the machine is at rest in order to placeWork upon it orlremove kWork from it by suitable conv nections with\thehoi'n depressing treadle 12, said connections comprising, in theillustrated construction, a rod 196 threaded at its upper end into apiece 197 having a pin and slot connection 'with a forked extension cithe member 175, said rod being pivotally connected at its lower end tothe treadle 12.

rl`he mechanism for automatically controlling the depth ot penetrationof the awl into the Work has preferably only a limited range ofmovement, since when operating upon'vvork which is very thick it isunnecessary tov vary the depth of penetration ot' the aivl and thereforewhen the thickness ot the work exceeds a predetermined amount the awldepth controlling mechanism ceases to cause variations in the movementof the a\vl corresponding to 'ariations in the thickness of the work. Astop 1.99 constituted b v a part of the, machine head located in thepath of tlie'segment carrying end of the lever152 limits the movement otthe awl depth cont/rolling mechanism. Inorderthat the tree movementofthe horn may notbe interfered with when the` thickness ot' the Workexceeds that for which automatic variation ot the awl movements ispro-vided, a yielding connection is provided between the rod 160 and theslide 162 upperlimit of its movement. that is, when ithas set the awloperating'mechanism to 'give the greatest amount. ot penetrativemovement. to the aufl. the slide 162 may be moved lrelativelyto the rod160 to permitthe horn' 22 to accon'unodate itself to ive-rk vWithin thespring .164 and connected to the "i'odlltO aud-having conined u'itliinit andl n'ithiii said socket is provided uitlrapiston 202 bearing upontheA loiver end" of the 200. The spring 200 is strong so that `thethickness ot the work enough accurately gaged bv the automatic lwill4rbe cont-rolling mechanism up to the maximum for which this l'nechanismis effective, and that beyond the said maximum the spring will becompressed to permit the relative movement of the slide 162 and the rod160.

The downward movement of the slidev .162 causes a positive downwardmovement of the` rod 160 after the spring -200 has expanded sufficientlyt'o bring the piston 202 into cont-act' with the, bottom of the socket198 in the event that said spring has been compressed;

v During the horn release operation of the horn controlling mechanismthere will be no movement of the awl through the awl depth controllingmechanism since 'at this time the slide 162 will be locked againstmovement and therefore the rod 160 will be held stationary. It will benoted that when the awl operatinglever .is turned about the yrock-shaft12-1 by the action ofthe lever 138 upon it` the part 1280 of the slidebar 128, as it rolls about the pinion 132,` will tend to move awayslightly from the part 1281 and for this reason the lslide bar 128 hasbeenv made in two separable sections in order that thisv slight downwardpull may not affect the vertical position of the fulcrum pin 134.'henthe slideway for the block 136 in the lever 138 and the slidevvayfor the slide bar 128 are substantially parallel, any movement of thebar 128 caused by variations in the l thickness of the work will have noeffect upon the awl 'since the parts Vare in what may be called neutralposition, and no tendency to turn is impartedl to the arm 126 of the awloperating lever by the movement of the slide 128 when the parts are inthis neutral position, or in other words,iwhen the angle vbetween theslideway for the block 136 and the slideway for the slide bar 128 iszero.A

Since the position of the awl will not be affected by any adjustment ofthe awl depth controlling mechanism when the two slideways vare in theposition just described. the parts are preferably so timed that themovemen't of the hornback into work gaging po` sition will take placewith the slideways in this position and that the machine will stop withthe slideways in this position. It will therefore be seen that the hornmay be depressed by the treadle 12 to permit work to be placed upon itor removed from it. without any effect upon the awl. Moreover it. willbe noted that the afwl has a fixed starting position by reason of thepositive con neet-ion between the arm 126 and the awl bar 96 and thatthe range of movement of the awl from this starting position is variedby the means hereinabove described.

The construction ofthe awl depth controlling. mechanism just describedis the best,l form now known to m'efin which this feature of myinventioni-.rnay'be embodied, but.

it should lbe understood that While I am the inventor of the broadfeatures of invention embodied in this construction, the speciticmechanism is the invention of Fred L. MacKenzie and is described. andclaimed in an application filed by said MacKenzie, Se-

rial No. 476,718, February 8, 1909.

I will now describe the modification of this mechanism shown in Fig. 5,which is the form in which I first embodied this feature of my inventionand upon which the invention of said MacKenzie is an improvement. myinvention shown in Fig. 5, the awl 600 is clamped in a slide 602arranged for .vertical movement in a horizontal slide 610 which moves ina guideway `604 in the forward end of a third slide 606. The slide 606was provided in the mach-ine in which this form of myv invention wasembodied to permit' certain movements ofother parts, not herein shownand constituting no part of the present invention. horizontal slidingmovement in the guideway 604 to permitthe awl to feed the work. Thehorizontal movement of the awl is positively `controlled throughconnections with a Cannnot herein shown, these connections comprising' arack bar 611 having a pin and slot connection Withthe awl slide 602whereby horizontal movement of the slide 606v 612 in a cam wheel 614C onthe driving shaft. A

These connections comprise abell crank 616 fulcrumed at 618 upon themachine frame and having a forked arm'619 which receives between itsfork members a third class lever 620 fulcrumed at. 608 in the slide 606,the lever 620 being provided with a slot 622 which receives a pin 624:connecting the .fo-rk members of the bell crank armu' At its forward endthe lever 620 is'provided with upper and lower slide engaging members623 and 625, respectively, through which the vertical movements of saidlever are transmitted to the slide 602. T he other arm 626 of the bellcrank 616 is provided with a pin or stud 62S which enters a slot 630 inone arm of a second bell'crank 632 having an adjustable fulcrum 634received in a slot 636 `in said bell crank. The fulcrum 634 is carriedby a slide 6238 guided in vertical ways in the machine frame,whereby-the fulln the embodiment of this feature of The slide 610 hasCrum 655-1 may be moved up and ldio-wn in the noten se roll 64:4 carriedby said slide and entering said cam groove..

To vary automatically the vamount of movement imparted to the lever 626,and thereby to the awl slide 602, through the connections justdescribed,as the Work varies in thickness, theY slide 638 is connected to the horno r other work support so that as the horn moves vertically intoclamping relation tothe different Work thicknesses vert-ical movementWill be imparted to the slide 638,' thereby varying the relativeeect-ive -lengths of the connected lever arms through "which movement istransmitted from the a cam groove 612 to the lever 620. The connectionsto the horn comprise a rod 646 pivotally connected at 64:8 to an arm 650of a rocker frame 652, fulcrumed upon the-machineframe. Another arm 654upon said rocker frame is slotted to receive a pin 656 npon the slide636. At its other end the rod 'may be connected to'the slide 162 or anyother suitable part Which receives motion from the horn.

The parts are shownin F ig. 5 in their positions of rest, at which timethe slot 636 is parallel to the path of travel ofl the slide 638andtherefore as the horn-is adjusted in lacing the Work in position tobe oper'ated uldnttlne iiulcru'm 63tivill be carried up and down in theslot 636 Without having any eiiect upon the position of ythe bell 'crank682.

It Will be noted that all of the pivotal connections are such that themovements are 'positive in both directions and that a construction is-provided in which the aivl is positively controlled throughout itsreciprocating movement, in which the amount of reciprocating movement isvaried from a fixed starting,poi'iit as the Work varies in thickness,and in which the adjustment in the operating connections is effected atysuch time thatk such adjustment has no direct effect upon the positionof the avvl.

AHaving described my invention, ivhat l claim as new and desire tosecure by Letters Patent of the United States is l. ln a machine of theclass describechan avvl, means for reciprocating said awl to :form anawl hole in the Work constructed -to control the avvl positively andcontinuons-ly throughout its reciprocating movement, and'ineans governedby variations in the thickness of the Work for varying the extent ofsuch positive reciprocating movement.

2. In a machine of the class described, an

continuously throughout its reciprocatingv movement, and means governedby variations in the thickness of the Work for varying the range of thepositive reciprocating movement of said avvl with respect to said.starting point.

3. 'A machine of the class described hav- .trol the avvl positively andVcontinuously throughout its reciprocating movement, and

.means for automatically adjusting said' aforementioned means to varyits effective throw in accordance With variations in the thickness ofthe Work constructed and arranged to `operate Without changing thepovsitionot the awl during the adjusting operation.

5; In a machine of. the class described, an aWl arranged to reciprocatevertically to form an aivl hole and torcciprocate laterally to iced theWork, means for controllin g positively both the vertical and thelateral rcciprocations oft said awl, and means governed by variations inthe thickness of the Work for varying the amount of the positivevertical reciprocation of said awl.

'6. Avmachine of the class described having, in combination, ieeechanismfor inserting tasteniiigs, an au'l for forming fastening 'receivingopenings in the work, and a work support controlling mechanism connectedto said Work support and comprising a member locked during the Workreleasing operation always at the same distance, measured lthrough saidconnections, from 'the under side ofthe Work, means for operating theaufl, and means connected to said member or' the Worksupport controllingmechanism for lvarying the amount of operative movement ot the awl inaccordance with the thickness of the Work.

7. A machine of the class describedliaving, in combination, mechanismfor inserting fastenings, an awl for forming fastening-receivingopenings in the Work and a Work support, means for operating the avfl,and meansiior'varying the amount of opertive movement of the aivl inaccordance with the thickness of the Work comprising two levers'pivotally connected lwith each other and means connected with the worksupport for varying the relative effective lengt-hs of the .connectedlever arms.

8. A machine of the class described having,in combination, mechanism forinserting fastenings, an aWl, means for positively Operating said a-Wl,a Work support and means for effecting a work releasing movement of saidwork support of uniform amount for successive .operations comprising aslide arranged to be locked in stationary position during said W'orkreleasing opera- .t-ion, and means for automatically varying 'theyeective throw of said aWl operatin means connected to said slide.

9.y A machine of the class described having, in combination, mechanismfor inserting fastenngs, an aWl for forming fastening-receiving openingsin ythe Work and a vertically movable -Work support, means for raising.and lowering the Work support to clamp and release the' -Work forsuccessivel `operating the awl and meansfor varying v 4th'eoperativemovement of said avvl operating mechanism connectedv to said slide. i

In testimony whereof I have signed my name to this specification 'in thepresence of two subscribing Witnesses.

' GEoRGE connu' lllftnesses:

H. DoRsEY SPENCER, HARLOW M. DAVIS.

